The influence of Pb composition on the upper critical magnetic field of Bi1.9-xPbxSb0.1Sr2Ca2Cu3Oy system

Xianglei Mao, Hongbao Liu, Quan Du, Weijie Zhang, Zhiqiang Mao, Ling Zhou, Yu Wang, Yuheng Zhang

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Abstract

Upper critical magnetic fields of the Bi1.9-xPbxSb0.1Sr2Ca2Cu3Oy system with x = 0.2, 0.3, 0.4 and 0.5 were measured by a magnetoresistance method with a pulsed magnetic field. The Hc2(0) are estimated to be 181, 370, 416 and 195 T for x = 0.2, 0.3, 0.4 and 0.5 respectively. The variation of Tc with x is comparatively small. The X-ray diffraction shows that there is no obvious change in structure. It suggests that the BiO plane in the system influences the superconductivity strongly.

Original languageEnglish (US)
Pages (from-to)136-138
Number of pages3
JournalPhysics Letters A
Volume138
Issue number3
DOIs
StatePublished - Jun 19 1989

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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